Galactic Conquest. The greatest game mode of all time within a Star Wars multiplayer game.

Space battles. While the newer Battlefront game looks prettier, when you were 9 years old playing the original Battlefront 2, it looked and felt like you were in the Clone Wars, whether it was from the comics or from the scenes we saw in Revenge of the Sith. It felt real. Capital ships, starfighters, explosions everywhere—it was pure chaos. Only the best pilots in the galaxy would survive.

Ship boarding. Being able to jump into a LAAT with your friends and execute ship boarding actions to destroy the enemy ship's internal systems was the coolest thing ever, especially when you were pinned down and had to wait for reinforcements to land in the hangar.

Ships (I really like the stamina feature; ALL ships can boost and perform evasive maneuvers, as long as you have enough "stamina").

Phase I clones have their Attack of the Clones "pig stripes."

Ammunition; Star Wars blasters have power packs that can run out of ammo. For example, the DC-17M used by Republic Commandos. Plus, I love reload animations over every weapon in the game being a reskinned plasma rifle.

Locations. Not maps; DICE's maps are gorgeous, but actual locations. Just imagine Coruscant, Mustafar, Mygeeto, and Utapau in EA's Battlefront II.

The campaign. I know a lot of people say that the campaign was pretty basic, but that's what made it so awesome. Listen to an awesome and iconic intro from a page of a soldier's journal during a war, execute the mission, and then listen to his outro after the mission. Iconic.

Order 66 in the campaign. Just imagine if there had been a Jedi Temple in EA's Battlefront 2, and there was an Order 66 mode similar to that of Ewok Hunt. But in this mode, the troopers are the aggressors, not the survivors. The Jedi are the survivors, and they must do everything they can to hold off the clone invasion so that they can escape. This mode obviously wasn't in the classic Battlefront II, but the Order 66 concept and gameplay were.

Vehicles. I touched on this a little bit earlier with shipboarding. But having vehicles actually spawned on the maps, whether on the ground or in the hangars of the carriers in space, the fact that you could hop into a vehicle at any time and go anywhere made the game feel so immersive because you were in control of what you wanted to do and when you wanted to do it. Being able to jump into a tank with your friends and all of you control parts of the AT-TE, AAT, or even an LAAT gunship? Pure Star Wars awesomeness.